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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

onsemi MPS2222ARLRM

Name: MPS2222ARLRM
Brand: onsemi
SKU: MPS2222ARLRM
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPS2222ARLRM

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-226-3, TO-92-3 Long Body, Formed Leads

Datasheet:: MPS2222ARLRM.pdf

Description:: TRANS NPN 40V 0.6A TO92

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MPS2222ARLRM from onsemi is an NPN silicon general-purpose transistor in TO-92 package, rated for 40 V_CEO, 600 mA continuous collector current, and 625 mW dissipation at T_A = 25°C. It delivers DC current gain (h_FE) of 100–300 at I_C = 10 mA, V_CE = 10 V, and supports switching applications with t_r ≤ 25 ns and t_f ≤ 60 ns under standard test conditions.

For engineers reviewing the MPS2222ARLRM datasheet, pinout, applications, or equivalent options, key selection criteria include V_CEO/V_CBO ratings, saturation voltage at defined I_C/I_B ratios, thermal resistance (R_θJA = 200°C/W), and small-signal bandwidth (f_T = 300 MHz).

Technical Context

The MPS2222ARLRM is a discrete NPN bipolar junction transistor optimized for linear amplification and medium-speed switching. Its design emphasizes high DC current gain across I_C = 0.1–500 mA, low V_CE(sat) (≤0.3 V at I_C = 150 mA, I_B = 15 mA), and stable f_T performance up to 300 MHz at I_C = 20 mA, V_CE = 20 V.

It operates across –55°C to +150°C junction temperature range, with R_θJC = 83.3°C/W enabling effective heat transfer to PCB copper when mounted with adequate thermal pad area. C_obo ≤ 8.0 pF and C_ibo ≤ 25 pF support RF-critical bias networks and low-noise preamp stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	40 V - Maximum safe collector-emitter voltage before breakdown; enables use in 24 V industrial control rails.
I_C (continuous)	600 mA - Sustained load drive capability; supports relay coils, LED arrays, and logic-level interface buffers.
h_FE @ I_C=10 mA	100–300 - High and consistent DC gain ensures reliable biasing in amplifier and switch driver circuits.
V_CE(sat) @ I_C/I_B=10	0.3 V - Low saturation voltage minimizes power loss and self-heating in switching mode.
f_T	300 MHz - Enables stable small-signal amplification up to VHF band; suitable for RF detector and oscillator buffer stages.
R_θJA	200°C/W - Thermal limit defines maximum ambient temperature for full-power operation without heatsinking.
NF @ I_C=100 µA	4.0 dB - Low noise figure supports audio preamplifier and sensor signal conditioning applications.

Pinout & Package

Package: TO-92 (Case 29–11), through-hole, epoxy-molded plastic with 3-pin vertical lead configuration. Standard lead spacing (P) ≤ 2.54 mm; body height (L) = 6.35 mm; recommended PCB pad layout per onsemi mechanical drawing.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current sink terminal	Reference node for base bias; connects to ground or low-impedance return path in common-emitter configurations.
2 (Base)	Control input	Receives current-limited drive (e.g., via 1–10 kΩ resistor); determines conduction state and gain setting.
3 (Collector)	Current source terminal	Connects to load and supply rail; carries full switched current; requires appropriate trace width for 600 mA.

Key Features

Feature	Design Value
High V_CBO rating	75 V - Supports robust operation in inductive load switching where flyback spikes exceed supply voltage.
Low leakage currents	I_CBO ≤ 0.01 µA, I_EX ≤ 10 nA - Ensures stable cutoff behavior over temperature and long-term reliability in battery-powered systems.
Wide operating temperature	–55°C to +150°C - Qualified for automotive under-hood, industrial motor control, and outdoor equipment environments.
Fast switching times	t_r ≤ 25 ns, t_f ≤ 60 ns - Enables PWM frequencies up to ~10 MHz in low-duty-cycle digital interfaces.
Optimized for tape-and-reel	2000 units per ammo pack - Designed for automated SMT placement compatibility despite through-hole package (requires wave solder or selective reflow).

Applications

Industrial Relay Driver	Audio Preamplifier Stage
Use Scenario: Driving 24 VDC coil relays in PLC I/O modules with microcontroller GPIO output. IC Role / Device Role / Timing Role: NPN switch providing current gain and isolation between low-power logic and inductive load. Use Value: V_CEO = 40 V withstands 2× supply voltage flyback; V_CE(sat) ≤ 0.3 V limits power dissipation to <100 mW at 300 mA load.	Use Scenario: First-stage amplification of electret microphone signals in portable voice recorders. IC Role / Device Role / Timing Role: Common-emitter small-signal amplifier with emitter degeneration for linearity and gain stability. Use Value: NF = 4.0 dB at 1 kHz and h_fe ≥ 75 ensure high SNR and minimal distortion at low signal levels.
LED Current Sink	Logic-Level Translator
Use Scenario: Constant-current sinking for multi-segment 7-segment displays in HVAC control panels. IC Role / Device Role / Timing Role: Linear current regulator using base bias resistor and emitter resistor feedback. Use Value: h_FE consistency across I_C = 1–20 mA enables precise current matching between segments without trimming.	Use Scenario: Level-shifting 3.3 V MCU outputs to 5 V TTL-compatible inputs in legacy instrumentation interfaces. IC Role / Device Role / Timing Role: Active pull-down switch converting high-Z or open-drain logic outputs to defined low-state voltage. Use Value: Fast t_f ≤ 60 ns ensures clean transitions at 1–5 MHz data rates; low V_BE(sat) = 1.2 V maintains margin for 3.3 V logic thresholds.

Industrial Relay Driver

Audio Preamplifier Stage

Use Scenario: Driving 24 VDC coil relays in PLC I/O modules with microcontroller GPIO output.

IC Role / Device Role / Timing Role: NPN switch providing current gain and isolation between low-power logic and inductive load.

Use Value: V_CEO = 40 V withstands 2× supply voltage flyback; V_CE(sat) ≤ 0.3 V limits power dissipation to <100 mW at 300 mA load.

Use Scenario: First-stage amplification of electret microphone signals in portable voice recorders.

IC Role / Device Role / Timing Role: Common-emitter small-signal amplifier with emitter degeneration for linearity and gain stability.

Use Value: NF = 4.0 dB at 1 kHz and h_fe ≥ 75 ensure high SNR and minimal distortion at low signal levels.

LED Current Sink

Logic-Level Translator

Use Scenario: Constant-current sinking for multi-segment 7-segment displays in HVAC control panels.

IC Role / Device Role / Timing Role: Linear current regulator using base bias resistor and emitter resistor feedback.

Use Value: h_FE consistency across I_C = 1–20 mA enables precise current matching between segments without trimming.

Use Scenario: Level-shifting 3.3 V MCU outputs to 5 V TTL-compatible inputs in legacy instrumentation interfaces.

IC Role / Device Role / Timing Role: Active pull-down switch converting high-Z or open-drain logic outputs to defined low-state voltage.

Use Value: Fast t_f ≤ 60 ns ensures clean transitions at 1–5 MHz data rates; low V_BE(sat) = 1.2 V maintains margin for 3.3 V logic thresholds.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN general-purpose transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
PN2222A	V_CEO = 40 V, I_C = 600 mA, but h_FE min = 100 only at I_C = 10 mA; f_T not specified in datasheet.	Lacks guaranteed f_T and noise figure specs; less suitable for RF or low-noise analog use.	Select PN2222A only if cost sensitivity outweighs need for verified bandwidth or noise performance.
BC547B	V_CEO = 45 V, I_C = 100 mA max, h_FE = 200–450, but PD = 500 mW and R_θJA = 250°C/W.	Lower power handling and higher thermal resistance limit use in sustained 500+ mA loads.	Choose BC547B for low-current (<100 mA), space-constrained designs where gain uniformity is critical.

Compared with PN2222A and BC547B, the MPS2222ARLRM offers superior combination of high current capability (600 mA), verified 300 MHz f_T, and low-noise operation-making it preferred for mixed-signal industrial and audio applications requiring both switching and amplification fidelity.

Availability

MPS2222ARLRM is available at Aetrix Electronics and suitable for industrial relay drivers, audio preamplifiers, LED current sinks, and logic-level translators requiring stable component supply and long-term manufacturability.

Supply support for MPS2222ARLRM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.

The MPS2222ARLRM belongs to onsemi's broad portfolio of general-purpose bipolar transistors designed for cost-sensitive, high-reliability applications in industrial controls, power management, and signal conditioning circuits.

FAQ

What is the maximum continuous collector current rating for MPS2222ARLRM?

The MPS2222ARLRM is rated for 600 mA continuous collector current at T_A = 25°C. Derating applies above 25°C at 5.0 mW/°C for free-air operation. At T_C = 25°C, it supports 1.5 W with derating of 12 mW/°C. Always verify thermal design with actual PCB copper area and ambient conditions before deploying at full current.

Does MPS2222ARLRM have a specified noise figure, and under what conditions?

Yes, the MPS2222ARLRM has a maximum noise figure (NF) of 4.0 dB, measured at I_C = 100 µA, V_CE = 10 V, R_S = 1.0 kΩ, and f = 1.0 kHz. This value is confirmed in the official onsemi datasheet (MPS2222/D, Rev. 1, page 3) and makes the MPS2222ARLRM suitable for low-noise preamplifier stages in audio and sensor interfaces.

What is the pin configuration for MPS2222ARLRM in the TO-92 package?

The MPS2222ARLRM uses TO-92 Style 1 pinout: Pin 1 = Emitter, Pin 2 = Base, Pin 3 = Collector. This is explicitly defined in the onsemi mechanical drawing (page 7, "STYLE 1") and matches the marking diagram orientation when the flat side faces the viewer and leads point downward.

How does the MPS2222ARLRM differ from the standard MPS2222 variant?

The MPS2222ARLRM is the "A" version (MPS2222A), featuring enhanced electrical specifications versus the base MPS2222: V_CEO = 40 V (vs. 30 V), V_CBO = 75 V (vs. 60 V), V_EBO = 6.0 V (vs. 5.0 V), and guaranteed h_FE ≥ 100 at I_C = 10 mA. The "RLRM" suffix denotes ammo-pack packaging (2000 units), confirming it is the preferred device per onsemi documentation.

Is MPS2222ARLRM suitable for switching inductive loads like solenoids?

Yes, the MPS2222ARLRM is well-suited for driving inductive loads such as solenoids due to its 75 V V_CBO rating, which safely absorbs typical flyback voltages, and fast switching times (t_r ≤ 25 ns, t_f ≤ 60 ns). Use a reverse-biased flyback diode across the load and ensure base drive provides sufficient I_B to maintain saturation under worst-case V_CE(sat).

MPS2222ARLRM Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-226-3, TO-92-3 Long Body, Formed Leads

Packaging:: Tape & Box (TB)

Product Status:: Obsolete

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 600 mA

Voltage - Collector Emitter Breakdown (Max):: 40 V

Vce Saturation (Max) @ Ib, Ic:: 1V @ 50mA, 500mA

Current - Collector Cutoff (Max):: 10nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 150mA, 10V

Power - Max:: 625 mW

Frequency - Transition:: 300MHz

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-92 (TO-226)

MPS2222ARLRM FAQ

1.How can I place an order for MPS2222ARLRM through Aetrix?

Please submit a Request for Quotation (RFQ) for MPS2222ARLRM on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MPS2222ARLRM reliable?

The price and inventory of MPS2222ARLRM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPS2222ARLRM is usually 5 days.

3.What payment methods are accepted for MPS2222ARLRM?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPS2222ARLRM transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPS2222ARLRM?

MPS2222ARLRM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPS2222ARLRM order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MPS2222ARLRM?

For technical support, including MPS2222ARLRM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPS2222ARLRM requirements.

6.How does Aetrix verify that MPS2222ARLRM is sourced from the original manufacturer or authorized distributors?

All MPS2222ARLRM products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MPS2222ARLRM meets industry standards.

7.What is the process for return or replacement of MPS2222ARLRM?

All MPS2222ARLRM units undergo pre-shipment inspection (PSI). If there is an issue with MPS2222ARLRM, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MPS2222ARLRM part is unused and in its original packaging.

Return procedure for MPS2222ARLRM:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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